Hello! So Ive been using my BB pearl flip 8220 as a modem with TMobile since February. And up until this past Friday it has worked fine. Ive been only able to connect 4 times since then. When I dial out, the message Error 734 the PPP control link was terminated. I called customer care, we tried several options, including wap.voicestream.com changed to epc.tmobile.com and she explained the difference yadda yadda. No settings have been changed. I have gone through the setup all over again. the initialization string has not been changed. The phone settings are the same. So either its a network issue, or a computer issue. I have gone on every site imaginable to fix this. All they consist of is checking all the settings for APN. I do not need this. I have the unlimited plan. and like i said, ive been using it perfectly up until Friday since February. Is there anyone who can help me diagnosis this and fix it? That would be greatly appreciated. (PS. I got it to connect just once today.... twice yesterday after hours of trying and talking to CSS trying various methods and nothing worked with string codes and such).